Device for diminishing the rolling motion of ships.



No 874,255. PATENTEDJDEG.I17Y, 1907.

- R. YSKUTSOH.

DEVICE FOR DIMINISHI-NG THE ROLLING MOTION OF SHIPS.

APPLICATION FILED MAR. 10, 1906.

N0. 874,255. PATBN'LLJJ um. 17, 1907.

R. 'SKUTSGH. DEVICE FOR DIM'INISHING THEROLLING MOTION 0P SHIPS.

APPLIUATION FILED MAR. 10, 1906.

2 SHEETS-SHEET 2.

- Javenfor jwyxl /fufiml y 4 fizz/2% DEVICE FOR DXIVIZWISHINQ- TEE ROLLING MOTION OF SHIPS.

Specification of Letters Patent.

Patented Dec. 17, 1907.

Application filcil Marni 3.0. [906. Serial Ho. 305.321.

lie it known that 1., 'Rr'noii Stirs-cu, professor, subject of the i llnperor of Her-- man residing ill Brunswick, Duchy of Brunswick, Empire of Gori'usny, have iu- \Olil ed curtain new and useful lmprovmnents in llcviws lor Q.liminishing the Rolling; illol'iou of Ships, 0] which thv iollouing is sspecificzit-ion.

This invention relates to an arran for the minimizing oi rolling niovonnmis.oi vessels, without the rolling inovenn-nts being converted into nto-hing i'noveinents and i consists of a. plurality of rotating bodies which are suspended in swinging supports adopted. to he'brnkvd, and which rotate in opposite directions with respcct to each otl'iei'.

It is known that the rolling motion of vesse s has been diminished through the: mo diuni of one or more rotatable elei'nei'its mounted in swinging supports adapted to be braked, for exzunple, as set forth in Letters- Pntent 769493 of September 6, 1904; but when the rolling motion is diminished the vessels hull is caused to pitch, that is to say, hen the rolling motion is diminished a pitching motion is produced, as has been. authenticated, reference being bad to Zeitschrift (les l' erei'nes (leutcclzer Ingeniewe, June 25th, 1904-, page 983, and also the some publ'mtion of date ofApril 2, 1904, page 478. In view of such conditirnis it is obvious that. the causing of the vessel pitching when climinishing the rolling action of the vessel is very Objectionable, and to overcome the produc'ing of the pitchin when minimizing the roliing action is the object of this invention, and such objectis attained by setting up the rota-table elements in such a. manner that they will. rotate in pairs in opposite directions with respect to each other, whereby on the one hand, set forth in Patent 769,493, there are produced couples of forces, which i'nininiize the rolling movement, but on the other hood, the tronsiornnitiou of this rolling n'ioveiuent into n pitching movement is prevented, US the couples ol forces, which would produce this pitching niovei-i'ient, obtsin o1iposits direction of rotation with respect to each other and therefore mutually counternot each other. For, in the moment, Where the one rotating body might g'iroduce n pitchii'ig movement with which the how of the vessel goes down or dips, the other rotating body has the tendency to produce such a.

a ships hull showing the arrangement of a minimizing device in accordance with this invcntlon. if 1g. 2 is a cross section. Fig. 3 a. plan. Figs. 4, 5 and 5 are, respectively,

n longitudinal section, a transverse section and sectional plan showing the arrangement of the braking device with respect to the rotating bodies I In the drew-rigs the rotatable elements are shown as fly-wheels m, 'm. The fly-Whoel 'in, as it appears in Fig. 1 is a section on line A-B of Fig. 2 and the flywheel m, as shown in. Fig. 1 a section on line C ll) of Fig. 2. Each fiy-Wheel is positioned in a suspended. ironic n, which swings around hori zontal. pivots 0.

l 4 to 6 of the drawings illustrate the Re--- braking device in detail for each frmne.

ferring to the said figures, a denotes a disk fastened upon the shaft 0 of the frame n and around said disk is. arranged a band I), the of which are fastened in a known vvaly, to a lever c, the latter turning on a pin e-csrried by the iever By shifting'the lever c in the direction of the arrow by a. Weight f 30 suspended thereby, the band d is pressed fast against the disk a. The friction generated bet veen the surfaces in contactwith each other of the disk and the bend renders more difficult the turning of the frame n against the body of the ship:

The driving apparatus for the flywheels is not shown, but it will be understood that the some can be of any suitable construction. As indicated by the arrows in Figs. 1 and 3, the two fly-wheels are to rotate in opposite directions, so that if the fly-Wheel m, when viewer: from above, rotates in the direction of the hands of a clock then the direction of rotation of the flywheel m is reversed.

With the foregoing construction and ELI- .i'sngenient oi the parts and owin to the op posits direction of the rotating odies, the one of them has the tendency to dip the bow of the vessel in the niovenmnt,- Where the other one has the tendency to press down -.or

dip the stern of the vessel, in orderthat the pairs of f orcesae ting through. the rotatingsaid element's rotating in an opposite direc tion with respect to the other, means for braking said supports whereby couples of force acting upon the vessel, are provided, those of the couples which atten'lpt to produce a pitching movement counteract each other, thereby preventing pitching 1novcment of the vessel.

2. A. device for minimizing the rolling movements of a vessel Witl'io'ut simultaneously producing pitching movement, comprising a pair of rotatable elements having the axis t ieroof capable of being angularly displaced, one of said elements rotating in an opposite direction with respect to the other of said elements, means whereby the axis of each of said elements can be angularly displaced, and braking means for arresting the angular displacement of said elements.

In testimony whereof I have hereunto set my hand in presence-of two subscribing witnesses.

.lt UDOLF SK. UTSU] l.

Witnesses:

Jumus SECKEL, WJLHELM Lemme. 

